Question

sum of two number is 70 and their difference is 16 find the numbers.plz do with seps

Answer 1

$x + y = 70 \\ x - y = 16 \\ adding \: equation \: 2 \: and \: 1 \\ x + y + x - y = 70 + 16 \\ 2x = 86 \\ x = 43 \\ x + y = 70 \\ x \\ y + 43 = 70 \\ \ y = 70 - 43 = 27 \\ x = 43 \\ y = 27$
these are the steps